Insulator



(No Model.)

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UNITED STATES PATENT OFFICE.

CHARLES ELKINS, OF SACCARAPPA, MAINE.

INSULATOR.

` PECIFICATION forming part of Letters Patent N0. 444,879, dated January20, 1891.

Application filed April 22, 1890. Serial No. 349,033. (No model.)

To all whom, t may concern:

Be it known that I, CHARLES ELKINS, a citizen of the United States,residing in Saccarappa, in the county of Cumberland and State of Maine,have invented certain new and useful Improvements in Insulating-Supportsfor Electric Wires, of which the following is a specification.

My invention relates to insulating-supports for electric wires; and myobject is to produce a support thatwill allow a free movement either ofthe wire through the support or the support on the wire, and yet avoidany electrical contact between the two.

IVhile niyinvention is usefulfor uncovered electric conductors, it isespecially designed for use in connection with insulated wires, such asunderwriters wire.7 Electric conductors are frequently strung tosupports which are liable to move, such as trees, and if lan unyieldingconnection is made therewith the conductor will be subjected toalternate pulling and slacking by the movement of said support, and it'a yielding connection is made, such as by passing' the conductor throughan eye attached to said support, the movements of the latter will causeinjurious wear on the conductor, particularly if an insulated one. t

My invention consists in a rectangular frame having an insulatinganti-friction sleeve or roller on each ot its sides and means each sideot this frame is an anti-friction sleeve or roller B, of hard insulatingmaterial. The object of having the frame in two parts is to enable thesleeves B to be applied to their places before the portions a4 areconnected to the bent arm. At the upper end of the insulator ispivotally connected the bracket C, having plate c, with holes for screwsor nails, by which the entire insulator is attached to a tree or othersupport. The object ofthe pivotal connection is not only to allow aswinging movement of the insulator regardless of the inclination of thesupport to which it is attached,but also to prevent an undue strain onthe conductor when the support sways out of its normal position.

D indicates the electric conductor, having an insulating-covering d.This conductor is simply threaded through the rectangle, or in case ofapplying my insulator to a line already strung the bracket C and arm awill be placed in position and the wire laid on the lower roller orsleeve B, and then the portion a, with its sleeve, will be permanentlyconnected to arm a.

The support, as a tree, and the insulator can be swung or moved, as bythe wind, without straining the wire, and wear on the insulatingcoveringof thelatter is reduced to a minimum, owing to the anti-friction sleevesor rollers B B.

Having thus described my invention, I claiml. A hanger or support forelectric wires, having a rectangular frame, and anti-friction rollers onthe sides of said frame.

2. A hanger or support for electric wires, having a rectangular frame intwo parts, and an insulating anti-friction roller on each of the foursides of the frame.

A hanger or support for electric wires, consisting of a frame carrying aplurality ot anti-friction rollers, and a bracket pivotally connected tosaid frame and 4forming the means of attaching to a support.

In witness whereot` I have hereunto signed my name in the presence oftwo subscribing witnesses.

CHARLES ELKINS.

Witnesses: n

WOODBURY K. DANA, FRANK J. DANA.

